Question 551128: For a triangle with the sides 18,20,and 27, will the triangle be acute,right,or obtuse? Support your answer wit your work.
Found 2 solutions by Alan3354, mathstutor458:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! For a triangle with the sides 18,20,and 27, will the triangle be acute,right,or obtuse?
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Compare  and  (c is the longest side)
If they're equal, it's a right triangle.
If c^2 is less, it's acute.
If c^2 is greater, it's obtuse.
Answer by mathstutor458(57)  (Show Source):
You can put this solution on YOUR website! first, we need to know
1. if a^2+b^2=c^2, then the triangle is a right triangle because of pythagorean thereorm. (i didn't spell that correctly)
2. if a^2+b^2>c^2, then the triangle is acute
3. if a^2+b^2
a=18,b=20,and c=27
c^2=729
a^2+b^2=724
a^2+b^2
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